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In this project, am going to build a smoke detector sensor using Arduino that not only detects the smoke but also reads the level of the smoke in the air and displays it in the PPM. I will attach all ...

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Explore how to interface the MQ2 gas sensor with Arduino to detect gases like LPG, smoke, and methane, and trigger alerts using LEDs and buzzers for safety applications. IoT Based Forest Fire ...

Don't be tricked by the name, because this sensor can not only detect gas or smoke ... of the arduino because the operating voltage range of this module is 5V with ±0.1% tolerance. As you can see in ...

For the smoke alarm circuit, you will need MQ2 sensor. Similarly, for detection of alcohol, MQ3 sensor is used, while MQ6 sensor is used for detecting LPG cooking gas. MQ* sensor has six pins. Heater ...

It is very sensitive to smoke and flammable gases like LPG, butane, propane, methane, alcohol, hydrogen, and carbon monoxide. When a gas comes in contact with the sensor, the circuit uses a simple ...